Fault Table - Krautzberger MP-400 Operating Instructions Manual

Diaphragm pump MP-400
9.3

Fault table

Error
Air bubbles in the material con-
tainer
Diaphragm pump runs
unevenly
The diaphragm pump does not
start up
Diaphragm pump works but
there is no pressure build-up or
suction
Pressure fluctuations during
operation or unusual running
noises
Item number: 200-0102
Cause
Intake line loose/leaking
Defective seal
Defective diaphragm
Foreign bodies in the ball valve
or worn valve
Air is sucked in
Intake line blocked
Valve balls/valve seat soiled/
leaking
No compressed air available
Control piston not in end posi-
tion
Defective pressure regulator
Intake screen soiled
Suction hose is kinked
Valve ball/valve seat soiled
Valve blocked
Valve ball/valve seat worn
Defective O-ring
Diaphragm worn
ENGLISH
Remedy
Check the intake line, tighten if
necessary
Ä Chapter
Replace the seal (
8.5 'Replace valve parts'
on page 30)
Replace the diaphragm (
Ä Chapter 8.6 'Replace the
diaphragm' on page 32)
Check the ball valve, replace if
necessary
Check the suction device
Check the intake line, clean if
necessary
Clean/replace the valve balls/
Ä Chapter 8.5
valve seat (
'Replace valve parts'
on page 30)
Switch on or check the com-
pressed air supply
Move the control piston to the
end position ( Ä Chapter 9.4.1
'Moving the control piston into
the end position' on page 36)
Replace the pressure regulator
Ä Chapter 9.5 'Replacing the
(
pressure controller'
on page 37)
Clean the intake screen
Check the suction hose
Clean the valve balls/valve
Ä Chapter 8.5 'Replace
seat (
valve parts' on page 30)
Clean the valve, rinse the dia-
phragm pump
Replace the valve balls/valve
Ä Chapter 8.5 'Replace
seat (
valve parts' on page 30)
Replace the O-ring (
Ä Chapter 8.5 'Replace valve
parts' on page 30)
Replace the diaphragm (
Ä Chapter 8.6 'Replace the
diaphragm' on page 32)
GB–35